HONEYWELL SERIES 80 THERMOSTAT TYPE RA89A

The transformer on the R can overheat when used with a series 20 thermostat if the total resistance of the thermostat including thermostat wire and thermostat contact resistance exceeds 2. This is the exact one hat came on my original purchase that lasted 22 yrs!! Once done, basement heating works normally. Satisfied does the job it was designed for. Home Contact Copyright Privacy. Turns out that volt thermostats and volt thermostats cycle on and off only if there is a sufficient load on the line as in electric heat. Start a screw for the keyhole type mounting hole in the upper right-hand corner.

The lowest-priced brand-new, unused, unopened, undamaged item in its original packaging where packaging is applicable. Packaging should be the same as what is found in a retail store, unless the item is handmade or was packaged by the manufacturer in non-retail packaging, such as an unprinted box or plastic bag. RA— and V models. Canadian Standards Association Certified: I recently upgraded my radiant floor heating from a simple 2 wire low voltage thermostat to a Nest thermostat 3 wire. See all 6 brand new listings. RJ— and V models. Honeywell Ra89a Switching Relay 24 V.

This arrangement is suitable for any number of additional zones. Follow any instructions furnished with the controlled equipment. We will be able to get back to you within 24 hours. Transformer Rating watts RA 7. See Figs 2 through rq89a for hookup diagrams for these relays.

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That’s how it’s done everywhere else.

Keep the cover on the relay during normal operation and remove only for service and checkout. All models have 1 wiring hole in case top. It had a volt thermostat connected directly to a circulator pump running a small hot water boiler for baseboard hot water heat.

Honeywell Ra89a Wiring Diagram

Honeywell Ra89a Wiring Diagram. The lowest-priced brand-new, unused, unopened, undamaged item in its original packaging where packaging is applicable. Hang the relay on the screw, position the case, and start the bottom screw. See details for additional therkostat. Disconnect power supply before wring to prevent electrical shock or equipment damage.

Honeywell Ra89a Switching Relay 24 V | eBay

You may also like. Your local Home and Building Control Sales Office please check the white pages thfrmostat your phone directory. RA— and V models. All wiring must comply with all applicable electrical codes, ordinances, and regulations. This item doesn’t belong on this page. Failure to follow them could damage the product or cause a hazardous condition.

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Transformer core not bonded. Once done, basement heating works normally. See Table 3 for wiring length specifications.

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Honeywell Switch RA User’s Manual |

Read these instructions carefully. MB 2 1 3 4 M Fig. I recently upgraded my radiant floor heating from a simple 2 wire low voltage thermostat to a Nest thermostat 3 wire.

The specifications given in this publication do not include normal manufacturing tolerances. After installation is complete, operate system through at least one cycle from the controller to make certain the relay controls the equipment as intended. The following item is a Honeywell Switching relay. Save on General Purpose Relays Trending price is based on prices thermoztat last 90 days.

They may turn black after being in honsywell for some time; however, this discoloration does not prevent proper operation. When two or more devices are to be controlled in parallel, the total current must not exceed the relay load rating. Show less Show hype. If you have additional questions, need further information, or would like to comment on our products or services, please write or phone: Start a screw for the keyhole type mounting hole in the upper right-hand corner.